GeForce GTX 980 Ti vs Radeon RX 6800 XT

Intro

Compare that to the Radeon RX 6800 XT, which features GPU core speed of 1825 MHz, and 16384 MB of GDDR6 memory set to run at 2000 MHz through a 256-bit bus. It also is made up of 4608 Stream Processors, 288 TAUs, and 128 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 980 Ti		250 Watts
Radeon RX 6800 XT		300 Watts
	Difference: 50 Watts (20%)

Memory Bandwidth

Theoretically, the Radeon RX 6800 XT should be a lot faster than the GeForce GTX 980 Ti in general. (explain)

Radeon RX 6800 XT		524288 MB/sec
GeForce GTX 980 Ti		336000 MB/sec
	Difference: 188288 (56%)

Texel Rate

The Radeon RX 6800 XT will be a lot (approximately 199%) more effective at anisotropic filtering than the GeForce GTX 980 Ti. (explain)

Radeon RX 6800 XT		525600 Mtexels/sec
GeForce GTX 980 Ti		176000 Mtexels/sec
	Difference: 349600 (199%)

Pixel Rate

The Radeon RX 6800 XT will be quite a bit (more or less 143%) better at FSAA than the GeForce GTX 980 Ti, and capable of handling higher resolutions without losing too much performance. (explain)

Radeon RX 6800 XT		233600 Mpixels/sec
GeForce GTX 980 Ti		96000 Mpixels/sec
	Difference: 137600 (143%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the maximum amount of information (measured in megabytes per second) that can be transported past the external memory interface in a second. The number is calculated by multiplying the bus width by the speed of its memory. If the card has DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.